Cap for sewer and other pipes.



Gr 0. MILLER.

GAP FOB SEWER AND OTHER PIPES. urmcnxox rum) mm: 4, 190-1.

Patented Dec. '22, 1908.

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* UNITED STATES. PATENT OFFICE.

GEORGE O. MILLER, OF NORTH TONAWANDA, NEW YORK, ASSIGNOR- TO LOUIS A. KELSEY,

OF NORTH TONAWANDA, NEW YORK.

CAP Eon SEWER AND OTHER PrPEs.

Specification of Letters Patent.

Patented Dec. 22, 1908.

To all whom it. may concern:

Be it known that I, GEORGE O. MILLER, residing at North Tonawanda, in the county of Niagara and State of New York, have invented certain new and usefulImprovements in Caps for Sewer and other Pipes, of which the following is a specification.

This invention relates to caps for sewer and other pipes, and it has for its object the production of a simple inexpensive, and durable cap provided with convenient and effective means for attaching the same to pipes.

The invention consists in the construction, arrangement, and combination of parts to be hereinafter described and particularly defined in the appended claims.

In the drawin s,-Figure 1 is a central vertical section t rough my improved cap, showing the same app ied to a plece of pipe. Fig. 2 is a vertical section taken on line 2-2, Fig. 1. Fig. 3 is a transverse section taken on line 33 Fig. 1 looking up. Fig. 4 is a detached inverted perspective view of the cap with the locking-bar removed. Fig. 5 is a detached perspective view of the locking-bar. Fig. 6 shows the application of my invention to a strainer cap.

Referring to the drawings in detail, similar numerals of reference refer to similar parts in the several figures.

The reference numeral 1 designates a ventilating pipe of a sewer system, having applied to its upper end my improved cap 2 which is adapted to be securely affixed while providing for the escape of foul gases from the ventilating pipe.

The cap is of ordinary formation; that is, concavo convex in crosssection,and it is provided on its inner face with projections or webs 3 which bear against the u per edge of the pipe and serve to support t e ("3a on the ipe, and with projectlons or we s 4 whic fit outside of the pipe and serve to center the cap on said pipe. This however, forms no part of my invention and may be varied to suit the desires of the producer.

Depending from the webs 3 are lugs 5 and 6; lug 5 being adapted to bear against the inner face of the pipe, while lug 6 is separated from the wall of the pipe by a space I 7 and has its outer face 8 inclined to form a ta ering lug.

assing centrally through the cap at the top thereof is a locking and adjusting screw 9 which is of considerable length and extends down between lugs 5 and 6. Said screw enters a threaded aperture 10 in a horizontally disposed lock bar 11 which has one end notched, as at 12, to form a bifurcated portion that straddles lug 5. Near its other end said bar has a rectangular aperture 13 with its outer end wall 1 1 beveled to correspond with the inclined face of lug 6, which latter enters said aperture. The lock-bar is guided for vertical movement on lugs 5 and 6, and aperture 12 is made somewhat longer than the width of lug 6 so that on drawing the lock-bar upward when revolving the screw, is moved slightly in a longitudinal direction, due to the beveled Wall of aperture 12 acting against the inclined face of ug 6.

On drawing the lock-bar upward, that end in which the aperture 13 is formed, is wedged securely against the inner face of the pipe and causes lug 5 to im inge' against the pipe at a point diametrica ly opposite. In this manner, a secure fastening is assured.

In Fig. 6, I have shown my cap in the form of a strainer-plate, the device being otherwise similar to that above described.

Having thus described my invention, what I claim is 1. A cap for pipes having depending lugs, and a single horizontal lock-bar guided for combined vertical and longitudinal movement on said, lugs, the lugs and lock-bar coacting to cause the cap to be secured to a ipe when said lock-bar is moved on said ugs.

2. A cap for pipes having depending lugs, one of which is provided with an inclined edge, a screw passing through the top of said cap, a horizontal lock-bar carried by said screw and having an aperture near one end into which fits the lug having the inclined edge, said lock-bar being adapted to move endwise against the inner surface of the pi e by contacting with the inclined edge of the lug when drawing said lock-bar upward.

3. A cap for pipes having opposite depending lugs, one 0 which has its outer edge inclined, a screw passing centrally through the In testimony whereof, I have aflixed my cap, a horizontal lock-bar having a threaded signature in the presence of two subscribing 10 apgrltlure into which said screw disfithreaded witnesses.

an avin a so a note 1 at one en ttin one of said lug s and an aperture at its othel end GEORGE MILLER provided with a beveled end wall bearing Witnesses:

against the outer inclined edge of the other ALICE M. MILLER,

of said lugs. IRENE E. SUTTON. 

